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Glucose enhancement of memory depends on initial thirst

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<mark>Journal publication date</mark>12/2009
<mark>Journal</mark>Appetite
Issue number3
Volume53
Number of pages4
Pages (from-to)426-429
Publication StatusPublished
<mark>Original language</mark>English

Abstract

This double-blind, placebo-controlled study examined the influence of appetitive state on glucose enhancement of memory. Participants rated their mood, hunger and thirst, then consumed a 25 g glucose drink or a matched placebo 20 min prior to a verbal memory task. There was a double dissociation when the effects of thirst ratings and drink on subsequent memory performance were considered. Those who were initially less thirsty recalled significantly more words following glucose than placebo; those who were more thirsty recalled significantly fewer words after glucose than placebo. Glucose enhancement of memory may therefore critically depend on participants' initial thirst. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.